BEGIN{
	FS=":"
} 
{
	#if( $0 ~ /sshd/ ) repalce lines which contains "sshd" with "xxxxx"
	#if( $0 ~ /7/ )  repalce lines which contains "7" It's the same as /.*7.*/
	#if( $0 !~ /7/ ) replace line without "7" with "xxxxx"
	#if( $0 !~ /n.*b.*d/) replace lines without n.*b.*d.* with "xxxxx"
	#if( $3 == "69")
	#if( $3 != "69")
	if( $0 ~ "7" && $6 ~ "rpm")
		{ print "xxxxx" }
	else
	{
		print $0
		}
}
